diff --git a/configuration.nix b/configuration.nix
index ebf86e9..af425ed 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -406,6 +406,15 @@
     ];
   };
 
+  # @yu-re-ka
+  users.users.yuka = {
+    isNormalUser = true;
+    openssh.authorizedKeys.keys = [
+      "ssh-rsa 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 yuka"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKath4/fDnlv/4fzxkPrQN1ttmoPRNu/m9bEtdPJBDfY cardno:16 933 242"
+    ];
+  };
+
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you